CN201059520Y - LED bulb radiator - Google Patents

Abstract

The utility model discloses a heat sink for an LED light bulb, which comprises a side wall and a top wall integrally formed, the side wall and the top wall surround and form a cavity with an opening at an end opposite to the top wall, the outside of the heat sink The surface is also provided with radially distributed cooling fins, and the outer surface of the top wall is integrally formed with a mounting table for mounting LED light emitting modules. The top wall is provided with a via hole through which the power supply line passes. A heat conduction sheet is also glued on the installation platform by means of heat conduction glue, and the LED light emitting module is installed on the heat conduction sheet. Since the installation platform is integrally formed with the top wall and side wall, it has a consistent thermal conductivity, and the heat generated by the LED light-emitting module can be quickly transferred to the top wall and side wall, and then dissipated through the heat sink to dissipate heat. High efficiency, can effectively guarantee the normal work of LED bulbs.

Description

LED bulb radiator

technical field

The utility model relates to an LED bulb structure, in particular to a heat sink for an LED bulb.

Background technique

As a new type of high-efficiency energy-saving light source, LED has been widely used. At present, there are also new LED bulbs that use LED as the light source of bulbs to form new LED bulbs. However, due to the large heat generated by LEDs during work, it is generally necessary to design special heat sinks for LED bulbs. Existing heat sinks are generally made of aluminum with high thermal conductivity. The heat sink includes a cylinder with two ends through. The outer wall of the cylinder is provided with a number of radially distributed fins; Assembled with a mounting table, the LED light-emitting module is installed on the mounting table. A large amount of heat generated by the LED light-emitting module is transferred from the mounting table to the cylinder body, mainly through the heat sink on the cylinder body. Since there is only a limited contact surface between the installation platform and the cylinder, and two independent components are assembled together, the heat is not easily transferred from the installation platform to the cylinder, which makes the overall heat dissipation performance poor, seriously affecting the LED bulb normal use.

Utility model content

The technical problem to be solved by the utility model is to provide a heat sink for LED light bulbs, which has a simple structure and good heat dissipation performance.

In order to solve the above-mentioned technical problems, the technical solution adopted by the utility model is: a heat sink for LED light bulbs, including a side wall and a top wall integrally formed, and the side wall and the top wall surround and form a wall opposite to the top wall. A cavity with an opening at one end, the outer surface of the heat sink is also provided with radially distributed heat sinks, and the outer surface of the top wall is integrally formed with a mounting platform for installing LED light emitting modules.

Preferably, the top wall is provided with a via hole through which a power supply line passes.

Preferably, a heat conduction sheet is bonded on the installation platform by means of heat conduction glue, and the LED lighting module is installed on the heat conduction sheet.

The beneficial effect of the utility model is that: since the installation platform is integrally formed with the top wall and the side wall, it has a consistent thermal conductivity, and the heat generated by the LED light-emitting module can be quickly transferred to the top wall and the side wall. Then it is radiated through the heat sink, the heat dissipation efficiency is high, and the normal operation of the LED bulb can be effectively guaranteed.

Description of drawings

Fig. 1 is a perspective view of the LED light bulb heat sink of the utility model.

Fig. 2 is a cross-sectional view of the heat sink of the LED light bulb of the present invention.

Fig. 3 is an appearance diagram of an LED bulb installed with a cooling seat for the LED bulb of the present invention.

Below in conjunction with accompanying drawing, the utility model is further described:

Detailed ways

As shown in Figures 1 to 3, the utility model provides a heat sink 2 for LED bulbs, which includes a side wall 20 and a top wall 22 formed integrally, and the side wall 20 and the top wall 22 surround and form a 22 is a cavity 24 with an open end opposite to it, and devices such as circuit boards can be installed in the cavity 24 . The outer surface of the top wall 22 is integrally formed with a mounting platform 26 for installing an LED light emitting module (not shown in the figure), and a via hole 27 is also provided on the top wall 22 to allow wires to pass through and connect to the LED light emitting module. The outer surface of the side wall 20 is also provided with cooling fins 28 distributed radially.

In addition, a heat-conducting sheet (not shown) can also be glued on the mounting table 26 by means of heat-conducting glue, and the LED light-emitting module is installed on the heat-conducting sheet to provide a heat-conducting effect and quickly make the LED light-emitting module work. The heat generated is exported.

As shown in FIG. 3 , it is an LED light bulb equipped with a heat sink for LED light bulbs of the present invention. A lamp cap 1 is installed on the upper end of the heat sink 2 and a lampshade 3 is installed at the lower end. The shape of the heat sink 2 can be designed according to the lamp cap 1 and the lampshade 3 so as to connect the lamp cap 1 and the lampshade 3 well, so that the LED bulb has a beautiful overall shape.

Since the installation platform 26 is integrally formed with the top wall 22 and the side wall 20, it has a consistent thermal conductivity, and the heat generated by the LED light-emitting module can be quickly transferred to the top wall 22 and the side wall 20 via the installation platform 26. , and then dissipated through the heat sink 28, the heat dissipation efficiency is high, and the normal operation of the LED bulb can be effectively guaranteed. In addition, surface treatments such as anodizing and high-temperature painting can also be carried out on the heat sink to further improve its heat dissipation performance.

Claims (3)

1. A heat sink for LED light bulbs, characterized in that: the heat sink includes integrally formed side walls and a top wall, and the side walls and the top wall surround and form a cavity that is open at an end opposite to the top wall, The outer surface of the heat sink is also provided with radially distributed heat sinks, and the outer surface of the top wall is integrally formed with a mounting platform for installing LED light emitting modules. 2. The heat sink for LED light bulbs according to claim 1, characterized in that: said top wall is provided with a via hole through which a power supply line passes. 3 . The heat sink for LED light bulbs according to claim 1 , wherein a heat conduction sheet is bonded to the installation platform by means of heat conduction glue, and the LED light emitting module is installed on the heat conduction sheet. 4 .

Images